Circular-knitting machine



(NOEOHBL) 3 SheetsSheet 1.

A. C. BUGBEE. CIRCULAR KNITTING MACHINE.

No. 439,050. Patented 001;. 21, 1890.;

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(No Model.) a Sheets-Sheet 2.

A. 0. BUGBEE. GIRGULAR KNITTING MACHINE.

No. 439,050. j Patented ott. 21, 189 0.

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NITED STATES PATENT OFFICE.

ALMON C. BUGBEE, OF LAKE VILLAGE, ASSIGNOR TO WARREN D. HUSE, OFLACONIA, NEW HAMPSHIRE.

CIRCULAR-KNITTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 439,050, dated October21, 1890.

Application filed March 27, 1890. Serial No. 345,546. (No model.)

To all whom it may concern.-

Be it known that I, ALMON C. BUGBEE, of Lake Village, in the county ofBelknap and State of New Hampshire, have invented certain new and usefulImprovements in Circular-Knitting Machines, of which the following is aspecification.

My invention relates particularly to that class of circular-knittingmachines which is designed to produce ribbed work and to knit what iscommonly termed welts at the edge of the fabric.

The object of my invention is to provide an improved machine of the kindreferred to.

Reference is to be had to the annexed drawings, and to the letters ofreference marked thereon, forming a part of this specification, the sameletters designating the same parts wherever they occur.

0f the drawings, Figure 1 is a broken top view of a circularrib-knitting machine embodying my improved means and adapted to carryout my improvements in the mode of knitting welts. Fig. 2 is a sideelevation of the machine shown in Fig. 1. Figs. 3 and 4 are diagramsillustrating the different positions of one form of dial-cams that maybe employed in my improved mode of knitting welts,'the dial-cam platebeing shown as inverted.

1n the drawings, a designates the bed of the machine; I), theneedle-cylinder; c, the cylinder-needles; cl, the rotary cam-cylinderfor reciprocating the cylinder-needles vertically. e is the needle-dial;f, the dial-needles; g, the cam-dial equipped with cams for reciprocating the dial-needles radially and horizontally, and h the yoke whichconnects the cam-cylinder with the cam-dial. The yoke is shown asremoved in Fig. 1, in order to better illustrate the invention.

The parts thus far described may be of common construction and function,excepting as hereinafter describedthat is, they may be constructed andarranged so as to perform rib-knitting by reciprocating the dial andcylinder needles to take a yarn and form stitches at the same point.

'i designates a circular plate connected to the cam-dial g, and thelatter is adapted to be rotated to a limited extent on the spindle j.The plate 2' is provided with teeth which are engaged by the teethformed on the segment 7c of a lever Z, pivoted upon a bracket m,connected with the cam-cylinder d. The outer end of the lever Z isprovided with a toothed segment at, which engages the teeth formed onthe periphery of a disk 0, adapted to turn on a spindle 19, arranged inbracket m.

g designates a lever connected with the disk 0 and provided at its freeend with a verticallyarranged pin 7", which extends down into positionto come in contact with cams 8, formed on the side of a Wheel 15,adapted to turn on a stud a, connected with the cam-cylinder d. A springQ, fastened to the dial-plate and lever q, serves to hold the pin '1'against the wheel 25 or its cams s. The wheel 1. is provided on theinner edge of its periphery with teeth 1), which are adapted to engagewith the upper end of a rod to, which may be raised through the bed a atpredetermined periods by means of a pattern-chain P, whose links actupon a lever 10, carrying the said rod w, as shown in Fig. 2, or byother suitable means.

The pattern-chain-carrying wheel has motion imparted to it by a pinionM, rotating with the gear-wheel M in engagement with the teeth on thecam-cylinder, the said pinion 8o meshing with and turning a gear-wheelN, with which rotates a cam N that rocks a weighted lever P, having apawl P whose lower end acts upon the toothed perimeter P of thepattern-chain-carrying wheel P to give it the required movement.

With this construction and arrangement of parts, when they are in theposition shown in Figs. 1 and 3 plain rib-knitting will be performed,the dial and cylinder needles being thrust out and raised at the samepoint. When, however, it is desired to produce a welt, the rod to willbe raised so as to engage one of the teeth o of wheel 15 and move thesame so that the pin r on the lever q will be moved by the cam s to thepoint a:,which will result in turning the disk 0 and operating lever Zso as to move the cam-dial g on spindle j in the direction indicated bythe arrow marked on the cam-dial in Fig. 1, and so effect the projectionor throwing out of the dial-needles some distance in advance of thepoint at which the cylinder-needles are raised. Upon beginning therotation of the plate 1' on spindle j said plate will move independentlyof the cam-dial 9 until the pin y, secured upon the throw-out cam andextending thron gh the slot 2, shall have been moved from the positionin the said slot ,2 in which it is shown in full lines in Fig. l to theposition in said slot in which it is represented in dotted lines, theeffect of which will be to move the throw-out cam on the cam-dial in acommon and wellknown manner, as shown in Fig. 4, so that it will notproject the dial-needles far enough to carry the loops thereon back ofthe latches. Upon the further rotation of the plate 1; it will carry thecam-dial with it, rotating it upon the spindle j to an extent which willeffect the projection of the dial-needles considerably in advance of thepoint at which the cylinderneedles are raised to take the yarn. Withthis adjustment of parts knitting will be performed on thecylinder-needles alone, the dialneedles failing to take the yarn. Oneormore courses will be knitted with the parts adjusted in the mannerdescribed, when the rod 20 will be again raised so as to strike one ofthe teeth 4; and turn wheel 15 a distance corresponding to that betweenany two teeth 1;, bringing the stud y back to the position in which itis-represented in Fig. 1, turning disk 1' in a direction opposite tothat in which it was previously moved and rotating cam-dial gin adirection opposite to that which is indicated by the arrow, so as tobring the cam-dial and cams connected therewith back to the positionrepresented in Figs. 1 and 3, projecting the dial-needles to theirfullest extent and at the same point where the cylinder-needles areraised, so as to eflect regular rib-knitting, as before.

It is obvious that changes in the form and arrangement of partscomprising my improvements may be made without departing from the natureor spirit thereof.

Having thus explained the nature of my invention and described a way ofconstructing and using the same, I declare that whatI claim is 1. Incombination, the needle-cylinder and its needles, the cam-cylinder, theneedle-dial and its needles, the diametrically-movable throw-out cam onthe cam-dial, and the said cam-dial, this last being. movable angularlyto change the position of its cams with respect to the cam-cylinder, asset forth.

2. In eombination,the needle-cylinder and its needles, the cam-cylinder,the needle-dial and its needles, the diametrically-movable throw-out camon the cam-dial, the said camdial, this last being angularly movable tochange the position of it's cams with respect to the cam-cylinder, andmeans for moving the throw-out cam and cam-dial, as set forth.

3. The combination, with the needle-cylinder, needle-dial, needles,cam-cylinder, and cam-dial having the diametrically-movable throw-outcam, the cam-dial being adapted to be moved angnlarly in its relation tothe camcylinder, of a plate a, movable angularly to a limited extentindependently of the cam-dial,

said plate being connected with the throwout cam of the cam-dial andadapted to' move the same, and a lever pivoted upon the camcylinder andengaged with the plate i,whereby the throw-out cam on the cam-dial maybe moved and the latter moved angularly in its relation to thecam-cylinder, as set forth.

4. The combination, with the needle-cylinder, needle-dial, needles,cam-cylinder, camdial, and the disk connected with the camdial, the dialbeing adapted to be moved angularly in its relation to the cam-cylinder,of a lever pivoted upon the cam-cylinder and connected with the disk ito move the same and the cam-dial angnlarly in its relation to thecam-cylinder, spindle p, lever (1, provided with pin 4", cam-wheel 25,provided with teeth 2;, and rod w, as set forth.

In testimony whereof I-have signed my name to this specification, in thepresence of two subscribing witnesses, this 20th day of February, A. D.1890.

ALMON BUGBEE.

WVitnesses:

ARTHUR W. ORossLEY, WARREN D. Boss.

